Die casting process

US6250365A · kind A · utility

Assignee

• TEKSID S.p.A. · IT

Inventors

• Merton C. Flemings · Cambridge, US
• Sergio Gallo · Torino, IT

Key dates

• Filing date: Jul 9, 1999
• Grant date: Jun 26, 2001
• Expiry date: Jul 9, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D17/2218
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Apparatus and methods of die casting which reduce waste, by providing heated channels to feed solidification shrinkage. The channels are heated to a temperature which prevents solidification in the channels, thus allowing the channels to be substantially smaller than conventional risers. An insulating layer in the mold prevents excessive heat loss from the channels to the mold cavity area.